68950317455 has 16 divisors (see below), whose sum is σ = 83748209664. Its totient is φ = 54490475520.

The previous prime is 68950317427. The next prime is 68950317479. The reversal of 68950317455 is 55471305986.

It is a happy number.

It is not a de Polignac number, because 68950317455 - 2¹⁸ = 68950055311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68950317397 and 68950317406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130994 + ... + 393776.

It is an arithmetic number, because the mean of its divisors is an integer number (5234263104).

Almost surely, 2^68950317455 is an apocalyptic number.

68950317455 is a deficient number, since it is larger than the sum of its proper divisors (14797892209).

68950317455 is a wasteful number, since it uses less digits than its factorization.

68950317455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263426.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 68950317455 in words is "sixty-eight billion, nine hundred fifty million, three hundred seventeen thousand, four hundred fifty-five".